out·pa·tient 
/ˈaʊtˌpeɪʃənt/ noun
plural out·pa·tients /ˈaʊtˌpeɪʃənt/ noun [count] : a person who goes to a doctor's office or hospital for treatment but who does not spend the night there — often used before another noun ▪ outpatient surgery [=surgery that does not require patients to stay in the hospital] ▪ outpatient care/treatment — compare inpatient
